Sash easing saw



Feb. 11, 1958 J. w. KuMP ET AL 2,822,563

SASH EASING SAW Filed June 2, 1955 W Joseph W. Kump AQQ Hester 7: Kump INVENTORS.

BY w mq,

United States Patent. F

The'present invention relates to a special purpose saw which is expresslyconstructetl andadesigne'd to enable a user thereof toreadily andsuccessfully-employ the same in easing undesirably lodged or tight-fitting sliding .sashes,

for example, those ina' doublehung window construction.

-Whether unpainted-and new orpainted and old, it. is

not unusual for sashes,--especia'lly in wooden windowconstructions, to' stick to the extent that it is often diflicult for one to slide them up and down freely. Sometimes the sashes are too tight-fitted between the stop beads and central parting strip. In other instances, even though requisite clearance space exists between the contacting surfaces, accumulated dirt often provides the source of interference. Time and again, it may be necessary to break through a paint bond in order to loosen a sash which has become immovable. Experience and experimentation have shown that a relatively small high grade steel saw, when properly made and equipped with handling means, can be inserted between the stuck surfaces and moved back and forth in a manner to either clean out a dirt laden channel, or open up a non-existing channel, whereby to thus ease and free the sashes for intended free sliding requirements.

An object of the invention is to satisfactorily solve the above revealed problem and to accomplish this through the medium of a simple, practical and economical, easyto-use reciprocable saw. In its preferred embodiment, this is an elongate blade having cutting and cleaning teeth along one longitudinal edge and provided with hand-1e means along the opposite longitudinal edge.

In carrying out a preferred embodiment of the invention, the handle means will be located, by reason of the proper width of the saw blade, beyond the closest existing surfaces of the stop bead and/ or parting strip so as to permit the user to catch hold of the same and reciprocate the blade without hindrance.

Then, too, novelty is predicated on a blade, the side of which adjacent the sash members is perfectly smooth and flat, the transverse ends of the blade being obliquely cut and thus at converging angles to facilitate functioning of the end portions of the saw blade in what would otherwise be cramped quarters.

Other objects, features and advantages will become more readily apparent from the following description and the accompanying sheet of drawings.

In the drawings:

Figure 1 is a plan view of a special purpose sash easing saw constructed in accordance with this invention;

Figure 2 is an enlarged cross-section on the irregular line 2-2 of Figure 1;

Figure 3 is a fragmentary front elevation showing the improved saw and how it is inserted in the intended place for use;

Figure 4 is a horizontal section on the line 4-4 of Figure 3; and

Figure 5 is an end elevation showing a modified form of handle.

Referring now to Figures 1 to 4, inclusive, and taking 2 up firstthe novel sashiloosening andseasing-saw, this is denoted, as an entity, by the numeral 8. It is of a-good .grade ofasaw steel and is. characterized by What may be construed as an elongate blade. This. isofappropriate length and. width for theintended purposes and isapproximately rigid. The. blade proper. is-characterized, as brought out in Figure2, by a perfectly smooth and flat side .liiwhich is intended to lie. in contact with a coacting surface of one of the. members,.vfor. example, the member 12 or the sliding sash 14,..as shown in Figures 3 and 4. As to the width, it will be noticed that this blade should be sufficient wide to take thepositionof use depicted. and also extend beyond the parting strip16 or, alternatively, the stop head or molding 18. It. is possible to insert this saw blade betweenthe surfaces12 an-d 16,.o-r, for that matter,..between .18 and. 12, depending upon whichappears to. be .most. accessible .andbetter to .work-with in case thel frame of the .sash is. jammed and stuck. Qne longitudinal edge portion, the edge 20, isserrated to provide serrationswhich -are. hereindescribed as suitable. saw teeth- 22. These. are. of appropriate :gauge,.and

are preferably flush with the surfaces 10 and 24, the latter surface being that which actually faces the user of the saw. The opposite longitudinal edge portion is formed with a notch 26 which is not absolutely necessary but is intended more or less to save metal and to lighten the weight of the saw. The end portions 28 on opposite sides of this notch are formed on the side 24 with hollow or tubular beads 30 which may be described either as handles or hand grips. In some instances, they may have to be so short and of limited cross-section that they are more or less finger grips. In any event, they constitute the means which the user catches hold of in order to shove the saw up and down or back and forth, as the case may be, after it is inserted between the sash frame member and the parting strip 16. The opposite transverse ends are cut obliquely and thus slant, as at 32. These converge toward the handles, that is, towards the edge which carries the handles, and clearance is thus had in order to work these end portions in corners and to prevent cramming of the saw.

A slot 34 is provided adjacent to one oblique angled transverse end 32 as shown to advantage in Fig. l. The slot is preferably parallel to the edge 32 and spaced just inwardly thereof and may be used, if desired, to assist one in hanging up the saw on a nail, hook or the like when the saw is not in use. Then, too, the marginal edge portions of the slot may be used to accommodate the bit or blade of a screwdriver or the like which is sometimes used in driving in the somewhat pointed corner existing at the juncture of the leading edge 20 and edge 32. That is to say, it has been found that under some circumstances the saw has to be started by positioning this pointed corner between the crowded surfaces of the sash and bead and this can often be done by placing the end of the screwdriver blade against the end of the slot and assisting in pushing the stated corner into place, at least partially so.

In the modification seen in Figure 5, the saw 8 is the same in construction as already described, and therefore, the same numerals are applied to corresponding parts. The only difference is that here, the handle or hand grip 36, instead of being bent from the metal of the blade itself, is a separate element or member. It could be metal and welded in place, or it could be wood and secured by a screw, or'it could be any material and fastened in any suitable manner to the slide 24 preferably adjacent what is the upper edge in Figure 5, and it is also preferably at right angles to the lengthwise finger grips 3t). In any event, any handle means is intended to be used so long as it is accessible for satisfactorily reciprocating the blade.

In operation, the saw is used somewhat in the manner fairly well illustrated in Figures 3 and 4. That is to say, the toothed edge of the saw blade is worked, forced or otherwise positioned between the surfaces, for example, of the parting strip 16 and sash frame member 12. In some instances, it may be necessary to more or less drive it in with a screwdriver blade or the like until it is possible to catch hold of the handles or grips and slide the saw up and down to clean out the channel, whether the channel be laden with dirt and depending to some extent on whether the woodwork is new and unpainted or has the first coat of paint, or has been painted and in existence for some time. Properly manipulating the saw in a somewhat obvious manner will loosen up the parts, and thus, the sash will be eased and rendered readily slidable and operable without removing it from the window frame.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

A special purpose hand saw for easing tight-fitting sashes in a double hung window construction and thus freeing and promoting unrestricted sliding of said sashes, said jaw comprising a substantially rigid elongated blade thin enough to enter and operate between contacting surfaces of a sash frame and stop beads and/ or parting strips, as the case may be, one side of said blade having a wholly flat and smooth surface, said blade being of a width allowing one lengthwise edge portion to project, when being used, to an accessible operating position beyond the adjacent lengthwise surface of a stop bead, said projecting edge portion at the respective end portions of saidv blade being fashioned into and providing longitudinally spaced individual hand-grips, said blade having its other lengthwise edge provided with raking'and scraping teeth, the respective transverse ends of said blade being inclined at oblique angles toward said projecting edge portion whereby the toothed longitudinal edge is of a length greater than the projecting edge portion and so that said transverse ends thus converge toward each other.

References. Cited in the file of this patent UNITED STATES PATENTS D. 52,990 Graham Feb. 11, 1919 1,261,844 Orr Apr. 9, 1918 1,455,621 Joyner May 15, 1923 2,568,012 Le Boluf Sept. 18, 1951 

